(A) As used in this section, "service credit" means service credit earned for periods for which contributions were made under section 145.47 of the Revised Code and, if applicable, periods for which service credit was purchased or restored under section 145.302 or 145.31 of the Revised Code.
(B) If a member has, or at the time of death had, at least five years of service credit, the public employees retirement board shall include the amount specified in rules adopted by the board in the amount payable under section 145.40 of the Revised Code to the member, or under division (B) of section 145.43 of the Revised Code to a beneficiary or beneficiaries of the member, unless at the time of death the member was a disability benefit recipient. The amount specified in rules shall be paid from the employers' accumulation fund.
(C) The public employees retirement board shall adopt rules under section 145.09 of the Revised Code specifying the additional amounts that may be provided a member under section 145.40 of the Revised Code or a beneficiary or beneficiaries under division (B) of section 145.43 of the Revised Code. The additional amounts may vary depending on the amount of service credit the member has accrued.